| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74AC540SJ | Octal Buffer/Line Driver with 3-STATE Outputs | 85K |
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| 2 | 74AC540SJ | Octal Buffer/Line Driver with 3-STATE Outputs | 100K |
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| 3 | 74AC540SJX | 8-Bit Inverting Buffer/Driver | 85K |
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